ProcessTriTessFactorsAvg function

Generates the corrected tessellation factors for a tri patch.

Syntax

void ProcessTriTessFactorsAvg(
  in  float3 RawEdgeFactors,
  in  float InsideScale,
  out float3 RoundedEdgeTessFactors,
  out float RoundedInsideTessFactor,
  out float UnroundedInsideTessFactor
);

Parameters

RawEdgeFactors [in]

Type: float3

The edge tessellation factors, passed into the tessellator stage.

InsideScale [in]

Type: float

The scale factor applied to the UV tessellation factors computed by the tessellation stage. The allowable range for InsideScale is 0.0 to 1.0.

RoundedEdgeTessFactors [out]

Type: float3

The rounded edge-tessellation factors calculated by the tessellator stage.

RoundedInsideTessFactor [out]

Type: float

The tessellation factors calculated by the tessellator stage, and rounded.

UnroundedInsideTessFactor [out]

Type: float

The original, unrounded, UV tessellation factors computed by the tessellation stage.

Return value

This function does not return a value.

Remarks

Generates the corrected tessellation factors for a tri patch, computing the inside tessellation factor as the average of the edge tessellation factors, which is then scaled by InsideScale. The result is then rounded based on the partitioning mode, but the unrounded results are available using the UnroundedInsideTessFactor parameter.

Minimum Shader Model

This function is supported in the following shader models.

Shader Model	Supported
Shader Model 5 and higher shader models	yes

 

This function is supported in the following types of shaders:

Vertex	Hull	Domain	Geometry	Pixel	Compute
	x

 

See also

Intrinsic Functions

Shader Model 5